Audio port(s) question

I've been asked lately to help out and provide music at a local sports event, and I've been able to use my M15x to provide the music .

I have come up with a couple of questions though, the PA I connect to needs the input volume coming from my laptop to be rather low (15-20%) for the PA volume control to be usable & to also prevent clipping, now this means that if I connect headphones to the second socket I can barely hear the music, so my first question:

Is it possible to set different volumes for each headphone port?

On a related note:

If I have multiple media players open can I feed each to a different port (for example previewing tracks or cuing them up)?

I've had a look at the Win 7 volume mixer & IDT control panel, but I haven't come up with a way of separating the two ports.

 

Here is the best way around that. You should use DJ software like Virtual DJ or similar. Somewhere in the options it will ask you to set your sound configuration. Select 5.1. Now go into your IDT audio and you can set your ports to be front LR and back LR and centre instead of 2x heaphones + mic therefore giving you a surround system. Virtual DJ can send one cued track down one set of channels ie one socket, and another perhaps the headphone sound down the other. And it can cue and mix tracks with two tracks having different levels. It is a bit complicated I know but it is the only way to solve your problems I'm afraid.